Model # RDN04

Internet #202698148

Store SO SKU #1000120071

Suncourt 4 in. to 4 in. Radon Mitigation Fan Kit


4 in. to 4 in. Radon Mitigation Fan Kit

$13081 /box
store icon Loading Buying Options...
package icon Loading Buying Options...
Sorry, but we ran into issues loading these options. Please try refreshing.

Frequently Bought Together

Product Overview

The Suncourt Radon Mitigation Fan Kit is ideal for sub-slab depressurization. The kit includes the 4 in. input/output fan, 2 white 4 in. to 4 in. rubber couplers and optional mounting hardware. The thermal plastic housing is resistant to UV rays and has been epoxy sealed for a watertight performance. It is ETL listed for continuous use and indoor/outdoor operation.

  • Sub-slab depressurization is a recommended solution to reduce radon levels in homes
  • High efficiency impeller creates the negative pressure needed for sub-slab depressurization
  • 132 CFM at 0.5in. WC
  • Class F motor has automatic thermal reset for overload protection
  • Anti-Vibration PVC couplers (4 in. to 4 in.) are included and connect fan to 4 in. Schedule 40 PVC
  • Housing is sealed for performance and durability for indoor or outdoor installation
  • Housing is UV resistant, suitable for indoor or outdoor installation
  • Click here for more information on Electronic Recycling Programs

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.



Product Depth (in.)
Product Height (in.)
Product Width (in.)


Primary application
Remove Radon Gas
Specialty Plumbing Tool Type
Other Specialty Tool

Warranty / Certifications

Manufacturer Warranty
5 Year Limited

More Products With These Features


Customer Questions & Answers

Can I run it inside the house & exhaust it through the water heater vent with a y-pipe? It vents at the roof peak.

Asked by: B93
Hello, No, that isn't an accepted radon mitigation exhaust. Radon mitigation systems should have the fan outside or above the living space and have their own dedicated exhaust. This is to prevent any cracks on the positive pressure side of the system from pumping radon gas into your home. You will run into issues when you go to sell the home. A savvy buyer or Realtor will notice a non-standard installation and ask for concessions. If you have questions about any installation please call us at 800-999-3267 M-F 8-4:30 central time. Thanks, Suncourt
Answered by: Suncourt Product Expert
Date published: 2017-05-16

Can I use this item with 230V?

Can I use this item with 230V?
Asked by: DD
Hello, No, the fan works with normal house 120 volt power. Thanks, Suncourt
Answered by: Suncourt Product Expert
Date published: 2017-04-05

How quiet is this unit .

How quiet is this unit .
Asked by: ALPO
Hello, I'd say the fans are pretty quiet. They are mounted outside or above the living spaces and come with two vibration isolating couplers. There isn't a lot of air movement through the fan so the most you should hear is a light hum. They are rated at 60dBA and 4 sones. Thanks, Suncourt
Answered by: Suncourt Product Expert
Date published: 2017-01-30

Does this product simple sit in the crawl space without running pipes and digging into basement concrete?

Asked by: Sdraas
No you will need to install it as a proper radon installation, which requires PVC pipe and drilling a hole in your basement floor to get to the ground underneath your house unless you have a sump pit, which you can use instead of drilling a hole. Instructions are included for both. You can also find many examples of radon installations by searching the internet if you would like to gather additional information before you start.
Answered by: Suncourt Product Expert
Date published: 2016-11-22
  • y_2017, m_7, d_24, h_23CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_9
  • loc_, sid_202698148, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 98ms

Customer Reviews

4 in. to 4 in. Radon Mitigation Fan Kit is rated 4.1 out of 5 by 13.
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-04-05
Rated 1 out of 5 by from Not enough specifications provided I cant believe you dont provide any detail of the performance specification for the fan, CFM and static pressure
Date published: 2013-03-01
Rated 4 out of 5 by from fan is good - "deal" is not, just less stuff The fan is easy to install and runs quietly. Thumbs up for that. Unfortunately, the online "kit" does not include the air pressure indicator shown in the picture (it is included with the store kit hence the price difference). My bad for not reading the caption thoroughly but the display is misleading. Note that the indicator is not available separately so unless you are replacing an existing fan, the store kit is a better choice.
Date published: 2012-01-03
Rated 3 out of 5 by from Great fan, missing mounting parts. Easy to install, quiet and moved the air quickly. Connecting the power was a snap. I didn't need to use the mounting bracket that come with the fan, however the screws and washers that were needed if I did need the brackets were missing.
Date published: 2016-12-27
Rated 4 out of 5 by from Suncourt radon fan 4" to 4" Installed very easy , the electrical hook up area very small and needed a small screwdriver to make the connection,once powered up the fan runs quiet I would buy it again.
Date published: 2016-11-16
Rated 5 out of 5 by from The most important part of your mitigation system I built a DIY Mitigation system and used a similar fan. Had I known Home Depot offered this fan kit, I would have purchased it instead of going with Amazon, as I always trust Depot's products (and like that I can return it without having to do a return shipment!) Anyway, I detailed my experience with an inline radon fan in this post Positive experience and it actually works.
Date published: 2016-07-11
Rated 5 out of 5 by from Quiet, easy to install, does a good job Our house had a radon reading of 5.0 so we installed this fan to ventilate the crawlspace. Glued the moisture barrier together to form the membrane (did not seal at walls) and ran sch40 pipe under membrane with end plunged about 18" into a hole in center of crawlspace. Fan was installed outside with lighter-weight DWV pipe above the fan and anchored to wall with gutter clips. Within two weeks radon level had dropped to 1.1. Noise and vibration are hardly noticeable!
Date published: 2013-02-06
Rated 4 out of 5 by from Decent Radon Mitigation Fan I'm a do-it-yourselfer and was able to change out my old radon fan with this one. The instructions were clear. This fan gives me a suction reading that is lower than my old one, but that might be how I have it hooked up. I'll have to see if I can check for leaks as the weather improves. I had an existing gutter as the vent, so better performance might come from using a PVC vent instead. I'll have to experiment.
Date published: 2015-03-24
  • y_2017, m_7, d_25, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_13
  • loc_, sid_202698148, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 107ms